I followed the Revan's guide http://www.modmyi.com/forums/showthread.php?t=8969

I didn't have ATT sim card from the start of the processs because my iphone was activated with ATT. All of the unlock process went fine. Anysim said the phone was unlock. When I put back the ATT sim and started the phone and now it says...repair needed, can't make or receive calls..What went wrong? Ibrickr won't recognize the phone so I can't even uninstall the anysim1.1...PLEASE HELP....Thanks